rebounder advice

I have purchased 2 rebounders today with the intent of taking one back. I bought one at Walmart - it has a metal frame and springs. I bought the other one at Canadian Tire - it has no springs.....the fabric is attached to the frame with stretchy fabric bands.....My gut is telling me the fabric bands might not hold up over time. I wish I could afford a really good one but can't right now. Anyone have any suggestions or opinions on this?

Thanks